diff --git a/authentication/source/java/ch/systemsx/cisd/authentication/DummyAuthenticationService.java b/authentication/source/java/ch/systemsx/cisd/authentication/DummyAuthenticationService.java
index 3618bc3f4049bc5bcd837e9b0a7558aba7a19fb7..0d3856944d22be8b0789381596c0971e6c9ce847 100644
--- a/authentication/source/java/ch/systemsx/cisd/authentication/DummyAuthenticationService.java
+++ b/authentication/source/java/ch/systemsx/cisd/authentication/DummyAuthenticationService.java
@@ -27,10 +27,10 @@ public final class DummyAuthenticationService implements IAuthenticationService
 {
 
     final String[] firstNames =
-        { "Stéphane", "Günter", "Elfriede", "Ryszard", "Karel", "Claude" };
+        { "St\u00e9phane", "G\u00fcnter", "Elfriede", "Ryszard", "Karel", "Claude" };
 
     final String[] lastNames =
-        { "Mallarmé", "Grass", "Jelinek", "Kapu\u015Bci\u0144ski", "\u010Capek", "Lévi-Strauss" };
+        { "Mallarm\u00e9", "Grass", "Jelinek", "Kapu\u015Bci\u0144ski", "\u010Capek", "L\u00e9vi-Strauss" };
 
     //
     // IAuthenticationService